Virus / conjunctivitis bug

Hi, just wondering if anyone was going through this- a horrible bug thing which makes them have red sore eyes?

DS (7) started last Friday with a sore head and has since had vomiting, sore head and temp up and down along with sore, red eyes. We've seen the GP who has checked him over and thinks it's a virus.

She thought he was Ok to go back to school but although he's all right for a bit then takes himself back to bed and sleeps, he's sleeping now. So I'm going to keep him off tomorrow and possible the rest of the week if it's no better.

It's very unusual him being ill, and DS (10) is fine. Any thoughts or anyone else with this?